stagit-index.c (6636B)
1 #include <err.h> 2 #include <limits.h> 3 #include <stdio.h> 4 #include <stdlib.h> 5 #include <string.h> 6 #include <time.h> 7 #include <unistd.h> 8 #include <git2.h> 9 10 static git_repository *repo; 11 12 static const char *relpath = ""; 13 14 static char title[255] = "Repos | Philomathic Life"; 15 static char description[255] = "SSH signing key:"; 16 static char description2[255] = "sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAILd+jZn2ddw1I5yJdTF6ZpB4pBmPZ8EK6y5bKob40kRkAAAADHNzaDpwZXJzb25hbA=="; 17 static char *name = ""; 18 static char owner[255]; 19 20 /* Handle read or write errors for a FILE * stream */ 21 void 22 checkfileerror(FILE *fp, const char *name, int mode) 23 { 24 if (mode == 'r' && ferror(fp)) 25 errx(1, "read error: %s", name); 26 else if (mode == 'w' && (fflush(fp) || ferror(fp))) 27 errx(1, "write error: %s", name); 28 } 29 30 void 31 joinpath(char *buf, size_t bufsiz, const char *path, const char *path2) 32 { 33 int r; 34 35 r = snprintf(buf, bufsiz, "%s%s%s", 36 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2); 37 if (r < 0 || (size_t)r >= bufsiz) 38 errx(1, "path truncated: '%s%s%s'", 39 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2); 40 } 41 42 /* Percent-encode, see RFC3986 section 2.1. */ 43 void 44 percentencode(FILE *fp, const char *s, size_t len) 45 { 46 static char tab[] = "0123456789ABCDEF"; 47 unsigned char uc; 48 size_t i; 49 50 for (i = 0; *s && i < len; s++, i++) { 51 uc = *s; 52 /* NOTE: do not encode '/' for paths or ",-." */ 53 if (uc < ',' || uc >= 127 || (uc >= ':' && uc <= '@') || 54 uc == '[' || uc == ']') { 55 putc('%', fp); 56 putc(tab[(uc >> 4) & 0x0f], fp); 57 putc(tab[uc & 0x0f], fp); 58 } else { 59 putc(uc, fp); 60 } 61 } 62 } 63 64 /* Escape characters below as HTML 2.0 / XML 1.0. */ 65 void 66 xmlencode(FILE *fp, const char *s, size_t len) 67 { 68 size_t i; 69 70 for (i = 0; *s && i < len; s++, i++) { 71 switch(*s) { 72 case '<': fputs("<", fp); break; 73 case '>': fputs(">", fp); break; 74 case '\'': fputs("'" , fp); break; 75 case '&': fputs("&", fp); break; 76 case '"': fputs(""", fp); break; 77 default: putc(*s, fp); 78 } 79 } 80 } 81 82 void 83 printtimeshort(FILE *fp, const git_time *intime) 84 { 85 struct tm *intm; 86 time_t t; 87 char out[32]; 88 89 t = (time_t)intime->time; 90 if (!(intm = gmtime(&t))) 91 return; 92 strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm); 93 fputs(out, fp); 94 } 95 96 void 97 writeheader(FILE *fp) 98 { 99 fputs("<!DOCTYPE html>\n" 100 "<html lang=\"en\">\n<head>\n" 101 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n" 102 "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" />\n" 103 "<title>", fp); 104 xmlencode(fp, title, strlen(title)); 105 fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/x-icon\" href=\"%sfavicon.ico\" />\n", relpath); 106 fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath); 107 fputs("</head>\n<body>\n", fp); 108 fprintf(fp, "<table>\n<tr><td><img src=\"%slogo.svg\" alt=\"Philomathic Life\" width=\"73\" height=\"32\" /></td>\n" 109 "<td><span class=\"desc\">", relpath); 110 xmlencode(fp, description, strlen(description)); 111 fputs("</span><br><span class=\"desc\">", fp); 112 xmlencode(fp, description2, strlen(description2)); 113 fputs("</span></td></tr><tr><td></td><td>\n" 114 "</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n" 115 "<table id=\"index\"><thead>\n" 116 "<tr><td><b>Name</b></td><td><b>Description</b></td><td><b>Owner</b></td>" 117 "<td><b>Last commit</b></td></tr>" 118 "</thead><tbody>\n", fp); 119 } 120 121 void 122 writefooter(FILE *fp) 123 { 124 fputs("</tbody>\n</table>\n</div>\n</body>\n</html>\n", fp); 125 } 126 127 int 128 writelog(FILE *fp) 129 { 130 git_commit *commit = NULL; 131 const git_signature *author; 132 git_revwalk *w = NULL; 133 git_oid id; 134 char *stripped_name = NULL, *p; 135 int ret = 0; 136 137 git_revwalk_new(&w, repo); 138 git_revwalk_push_head(w); 139 140 if (git_revwalk_next(&id, w) || 141 git_commit_lookup(&commit, repo, &id)) { 142 ret = -1; 143 goto err; 144 } 145 146 author = git_commit_author(commit); 147 148 /* strip .git suffix */ 149 if (!(stripped_name = strdup(name))) 150 err(1, "strdup"); 151 if ((p = strrchr(stripped_name, '.'))) 152 if (!strcmp(p, ".git")) 153 *p = '\0'; 154 155 fputs("<tr><td><a href=\"", fp); 156 percentencode(fp, stripped_name, strlen(stripped_name)); 157 fputs("/log.html\">", fp); 158 xmlencode(fp, stripped_name, strlen(stripped_name)); 159 fputs("</a></td><td>", fp); 160 xmlencode(fp, description, strlen(description)); 161 fputs("</td><td>", fp); 162 xmlencode(fp, owner, strlen(owner)); 163 fputs("</td><td>", fp); 164 if (author) 165 printtimeshort(fp, &(author->when)); 166 fputs("</td></tr>", fp); 167 168 git_commit_free(commit); 169 err: 170 git_revwalk_free(w); 171 free(stripped_name); 172 173 return ret; 174 } 175 176 int 177 main(int argc, char *argv[]) 178 { 179 FILE *fp; 180 char path[PATH_MAX], repodirabs[PATH_MAX + 1]; 181 const char *repodir; 182 int i, ret = 0; 183 184 if (argc < 2) { 185 fprintf(stderr, "usage: %s [repodir...]\n", argv[0]); 186 return 1; 187 } 188 189 /* do not search outside the git repository: 190 GIT_CONFIG_LEVEL_APP is the highest level currently */ 191 git_libgit2_init(); 192 for (i = 1; i <= GIT_CONFIG_LEVEL_APP; i++) 193 git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, i, ""); 194 /* do not require the git repository to be owned by the current user */ 195 git_libgit2_opts(GIT_OPT_SET_OWNER_VALIDATION, 0); 196 197 #ifdef __OpenBSD__ 198 if (pledge("stdio rpath", NULL) == -1) 199 err(1, "pledge"); 200 #endif 201 202 writeheader(stdout); 203 204 for (i = 1; i < argc; i++) { 205 repodir = argv[i]; 206 if (!realpath(repodir, repodirabs)) 207 err(1, "realpath"); 208 209 if (git_repository_open_ext(&repo, repodir, 210 GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) { 211 fprintf(stderr, "%s: cannot open repository\n", argv[0]); 212 ret = 1; 213 continue; 214 } 215 216 /* use directory name as name */ 217 if ((name = strrchr(repodirabs, '/'))) 218 name++; 219 else 220 name = ""; 221 222 /* read description or .git/description */ 223 joinpath(path, sizeof(path), repodir, "description"); 224 if (!(fp = fopen(path, "r"))) { 225 joinpath(path, sizeof(path), repodir, ".git/description"); 226 fp = fopen(path, "r"); 227 } 228 description[0] = '\0'; 229 if (fp) { 230 if (!fgets(description, sizeof(description), fp)) 231 description[0] = '\0'; 232 checkfileerror(fp, "description", 'r'); 233 fclose(fp); 234 } 235 236 /* read owner or .git/owner */ 237 joinpath(path, sizeof(path), repodir, "owner"); 238 if (!(fp = fopen(path, "r"))) { 239 joinpath(path, sizeof(path), repodir, ".git/owner"); 240 fp = fopen(path, "r"); 241 } 242 owner[0] = '\0'; 243 if (fp) { 244 if (!fgets(owner, sizeof(owner), fp)) 245 owner[0] = '\0'; 246 checkfileerror(fp, "owner", 'r'); 247 fclose(fp); 248 owner[strcspn(owner, "\n")] = '\0'; 249 } 250 writelog(stdout); 251 } 252 writefooter(stdout); 253 254 /* cleanup */ 255 git_repository_free(repo); 256 git_libgit2_shutdown(); 257 258 checkfileerror(stdout, "<stdout>", 'w'); 259 260 return ret; 261 }